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Class 7 Maths Worksheet: Fractions and Decimals

Maths worksheets lesson 50: Fractions and decimals: multiply and divide · Set 536 · 40 sums
TalentJR

The method (Flip and multiply): a/b × c/d = (a × c)/(b × d), then simplify. A whole number n is n/1. a/b ÷ c/d = a/b × d/c. Decimal × decimal: multiply as whole numbers; the answer has as many decimal places as both numbers together — 1.2 × 0.3 = 0.36. Decimal ÷ decimal: multiply both by 10 (or 100) first — 2.4 ÷ 0.6 = 24 ÷ 6 = 4.

NameDateTime takenScore ___ / 40
  1. 1.One roll of ribbon has 3.1 m. How many m do 7 of them make in all? =
  2. 2.1.14 ÷ 2 =
  3. 3.3.5 ÷ 0.7 =
  4. 4.1.2 ÷ 5 =
  5. 5.1.2 ÷ 0.6 =
  6. 6.5.36 ÷ 8 =
  7. 7.One bottle of oil holds 4.4 L. How many L do 3 of them make in all? =
  8. 8.6.6 × 0.2 =
  9. 9.8/9 ÷ 1/3 =
  10. 10.1/4 ÷ 4/7 =
  11. 11.One packet of rice weighs 1.6 kg. How many kg do 6 of them make in all? =
  12. 12.4/7 × 4/7 =
  13. 13.23.16 ÷ 4 =
  14. 14.1/3 × 15 =
  15. 15.1/7 × 5/9 =
  16. 16.2/3 ÷ 5/7 =
  17. 17.4.2 × 0.6 =
  18. 18.1.32 ÷ 2 =
  19. 19.One bottle of oil holds 4 L. How many L do 4 of them make in all? =
  20. 20.3/4 × 5 =
  21. 21.5/9 ÷ 4/5 =
  22. 22.1/6 × 2/5 =
  23. 23.6/7 × 2 =
  24. 24.1/2 × 8/9 =
  25. 25.5.8 × 0.7 =
  26. 26.6.4 ÷ 0.8 =
  27. 27.4/7 × 3/4 =
  28. 28.6/7 × 2/3 =
  29. 29.1.3 × 0.4 =
  30. 30.5/8 ÷ 2/3 =
  31. 31.2.2 × 0.7 =
  32. 32.3/5 × 3/8 =
  33. 33.6/7 × 7/8 =
  34. 34.1/5 ÷ 2/5 =
  35. 35.1/2 × 3 =
  36. 36.One bag of potatoes weighs 5.9 kg. How many kg do 12 of them make in all? =
  37. 37.1/3 × 3 =
  38. 38.62.48 ÷ 8 =
  39. 39.One jug of milk holds 3.5 L. How many L do 5 of them make in all? =
  40. 40.6.1 ÷ 2 =

Answer key

  1. 21.7
  2. 0.57
  3. 5
  4. 0.24
  5. 2
  6. 0.67
  7. 13.2
  8. 1.32
  9. 8/3
  10. 7/16
  11. 9.6
  12. 16/49
  13. 5.79
  14. 5
  15. 5/63
  16. 14/15
  17. 2.52
  18. 0.66
  19. 16
  20. 15/4
  21. 25/36
  22. 1/15
  23. 12/7
  24. 4/9
  25. 4.06
  26. 8
  27. 3/7
  28. 4/7
  29. 0.52
  30. 15/16
  31. 1.54
  32. 9/40
  33. 3/4
  34. 1/2
  35. 3/2
  36. 70.8
  37. 1
  38. 7.81
  39. 17.5
  40. 3.05

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